Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 3732
TLS Online TPP Program

#Question id: 3945

About 30% of point mutations (substitutions) that occur in coding regions of DNA are harmless. Why?

#Unit 3. Fundamental Processes

  1. because only 30% of the DNA is actually coding for amino acids

  2. because only 70% of the DNA is actually coding for amino acids

  3. because most amino acids are specified by several codons that differ at the third position

  4. all of the above

More Questions
TLS Online TPP Program

#Question id: 16109

#Unit 7. System Physiology – Animal

Which response to overcooling does not involve muscle contraction
TLS Online TPP Program

#Question id: 16110

#Unit 7. System Physiology – Animal

what happens to the arterioles near the surface of the skin when the body temperature rises?
TLS Online TPP Program

#Question id: 16111

#Unit 7. System Physiology – Animal

When environmental temperature is less than body temperature, mechanisms are activated that:
TLS Online TPP Program

#Question id: 16112

#Unit 7. System Physiology – Animal

Which of the following is not a heat generating mechanism?
TLS Online TPP Program

#Question id: 16113

#Unit 7. System Physiology – Animal

Which of the behavioural components may not contribute by reducing the exposure of skin to the cold?
TLS Online TPP Program

#Question id: 16114

#Unit 7. System Physiology – Animal

Which of the following hormones are thermogenic?